Finding the Fourth Proportional to 900,299,389.41, 1,242,543,114.24 and 518,748,348.23
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Solution
The fourth proportional to 900,299,389.41, 1,242,543,114.24 and 518,748,348.23 is: 715,947,601.09
Step by Step Solution
- Step 1: Write the proportion equation
900,299,389.41 : 1,242,543,114.24 = 518,748,348.23 : x - Step 2: Convert to fraction form
900,299,389.41/1,242,543,114.24 = 518,748,348.23/x - Step 3: Cross multiply
900,299,389.41x = 1,242,543,114.24 × 518,748,348.23 - Step 4: Simplify right side
900,299,389.41x = 644,567,188,110,347,520 - Step 5: Solve for x
x = 644,567,188,110,347,520/900,299,389.41 - Step 6: Final answer
x = 715,947,601.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.